title: Large mode splitting and lasing in optimally coupled photonic-crystal microcavities.
abstract: Coupling of L-type photonic-crystal (PhC) cavities in a geometry that follows inherent cavity field distribution is exploited for demonstrating large mode splitting of up to ~10-20 nm (~15-30 meV) near 1 µm wavelength. This is much larger than the disorder-induced cavity detuning for conventional PhC technology, which ensures reproducible coupling. Furthermore, a microlaser based on such optimally coupled PhC cavities and incorporating quantum wire gain medium is demonstrated, with potential applications in fast switching and modulation.
authors.affiliation: Ecole Polytechnique Fédérale de Lausanne, Laboratory of Physics of Nanostructures CH-1015 Lausanne, Switzerland. kirill.atlasov@a3.epfl.ch
authors.forename: Kirill A
authors.initials: KA
authors.lastname: Atlasov
authors.forename: Alok
authors.initials: A
authors.lastname: Rudra
authors.forename: Benjamin
authors.initials: B
authors.lastname: Dwir
authors.forename: Eli
authors.initials: E
authors.lastname: Kapon
mesh_terms: D003460:Crystallization; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D008904:Miniaturization; D017785:Photons; D012031:Refractometry / Q000295:instrumentation*